716results about "Steam generation plants" patented technology

The invention discloses an energy system and method for coupling calcium-based thermochemical heat storage and carbon capture. The energy system comprises a calcination unit, a carbon dioxide pretreatment storage unit, a calcium oxide heat exchange storage unit, a carbonation reaction unit and a heat utilization unit which are arranged based on a boiler. The calcining unit takes green valley electricity as energy to drive calcining reaction to realize heat storage, and generated CaO is processed by the calcium oxide heat exchange storage unit and then is stored for use in a heat release stage; generated COs are stored for standby application after passing through the carbon dioxide pretreatment storage unit; in the heat release stage, CaO and the desulfurized flue gas are subjected to heat release carbonation reaction in the carbonation reaction unit, and heat is released; caCO3 generated by the carbonation reaction can be used for the next heat storage stage; and the heat released by the carbonation reaction is conveyed to the heat utilization unit for heat exchange. Through coupling of calcium-based thermochemical heat storage and carbon capture, green electricity and off-peak electricity are fully utilized, and efficient storage and gradient utilization of energy are achieved.

A gas and steam power generation afterburning type heat-electricity decoupling system and a working mechanism thereof, characterized in that the system comprises a gas turbine power generation system, a power transmission and transformation system, a molten salt heat storage system and a steam power generation system; the gas turbine power generation system is connected with the molten salt heat storage system through a flue gas pipeline; the molten salt heat storage system is connected with the power transmission and transformation system through a cable; the gas turbine power generation system is connected with the power transmission and transformation system through a cable; the molten salt heat storage system is connected with the steam power generation system through a main steam pipeline and a backwater pipeline; and the steam power generation system is connected with the power transmission and transformation system through a cable. The system can realize complete heat-electricity decoupling in a green energy storage system, realize the functions of self-supply of external power, storage of green electricity or heat supply, increase the accommodation capacity of a power grid to green electricity, and enhance the stability, flexibility and safety of a new power system.

The invention relates to the technical field of range hood cleaning, and discloses a steam washing device and a range hood, and the steam washing device comprises a steam generator and a water production module. The steam generator is provided with a steam cavity and a water inlet communicated with the steam cavity, and the steam generator is used for heating the cleaning medium in the steam cavity to generate steam. The water production module is connected with the steam generator, the water production module comprises a refrigeration sheet and a condensation fin, the condensation fin is connected to the refrigeration sheet, and at least part of the condensation fin extends to the water inlet. Wherein the refrigeration sheet is used for providing cooling capacity and conducting the cooling capacity to the condensation fin, and the condensation fin is used for condensing water vapor in air to form condensed water and guiding the condensed water to flow to the water inlet so as to enter the steam cavity to supplement the cleaning medium. According to the technical scheme, automatic water supplementing without a water pump and a water tank can be achieved, condensate water is formed by condensing water vapor in air to supplement the cleaning medium, and continuous operation of the steam washing function is stably guaranteed.

The invention relates to a fused salt heat storage system based on heat energy grading matching. The system comprises a first-stage heat exchange unit, a second-stage heat exchange unit, a third-stage heat exchange unit and a mixing unit, and the first-stage heat exchange unit comprises a first-stage fused salt heat storage loop and a first-stage heat exchange adjusting valve and is used for absorbing and storing high-grade heat of exhaust gas of an exhaust pipeline of a boiler furnace; the second-stage heat exchange unit comprises a second-stage fused salt heat storage loop and a second-stage heat exchange regulating valve and is used for absorbing and storing high-grade heat of main steam extraction of a main steam extraction pipeline of a high-pressure cylinder of the steam turbine; the third-stage heat exchange unit comprises a third-stage fused salt heat storage loop and a third-stage heat exchange regulating valve and is used for absorbing and storing low-grade heat of air exhaust of an intermediate-pressure cylinder of an air exhaust pipeline of the intermediate-pressure cylinder of the steam turbine; the mixing unit mixes the three kinds of exhaust heat and outputs working medium fluid meeting the target temperature so as to adapt to different preset operation working conditions of the thermal power generating unit. Therefore, heat energy can be stored and released in a gradient mode through the system, wide-temperature-range efficient utilization is achieved, and the flexibility and energy efficiency of the thermal power generating unit are improved.

The application discloses a supplemental combustion type flue gas molten salt heat exchanger and a working mechanism thereof, characterized in that: a supplemental combustion device is added in the upstream of a flue gas molten salt heat exchanger, the supplemental combustion device is connected with the flue gas molten salt heat exchanger through a flue, and a supplemental combustion type flue gas molten salt heat exchange integrated device is formed; the device comprises a supplemental combustion device or a supplemental combustion device, and a first-stage flue gas molten salt heat exchange component. The application can realize the functions of more uniform and efficient supplemental combustion heat transfer in the flue gas, realize a safer ignition mode of the supplemental combustion gas or the mixed body of the atomized supplemental combustion gas and liquid (or gas powder) outside the flue, realize the function of more convenient monitoring of the supplemental combustion, realize the complete decoupling of heat and electricity in the combustion engine power generation heat supply energy storage system, and realize the functions of self-supply of external power, heat storage or heat supply of the system.

The embodiment of the invention provides a multi-steam-source cooperative frequency modulation combined heat and power generation system and a control method. The system comprises a boiler, a high-pressure cylinder, an intermediate-pressure cylinder, a low-pressure cylinder, a power generator, a multi-stage regenerative heater, a heating system and a heating steam supply pipeline. A main steam outlet of the boiler is connected to the high-pressure cylinder through a main steam pipeline, a steam exhaust port of the high-pressure cylinder is connected to the intermediate-pressure cylinder through a pipeline, a steam exhaust port of the intermediate-pressure cylinder is connected to the low-pressure cylinder through a pipeline, and a steam exhaust port of the low-pressure cylinder is connected to the generator through a pipeline. A condensate water outlet of the medium-pressure cylinder is communicated to a condensate water inlet of the boiler through a first condensate water pipeline; the heating system is communicated with a steam exhaust port of the medium-pressure cylinder through a heating steam supply pipeline; the multi-stage regenerative heater is arranged on the first condensate water pipeline and connected with the high-pressure cylinder and / or the intermediate-pressure cylinder through steam extraction pipelines, and steam extraction adjusting valves are correspondingly arranged on the steam extraction pipeline between the high-pressure cylinder and the multi-stage regenerative heater and / or the steam extraction pipeline between the intermediate-pressure cylinder and the multi-stage regenerative heater.

Waste heat cascade utilization system for the synergistic recovery of heat energy from heat exchange and milling heat, characterized in that it includes a mechanical heat recovery device, a primary preheating device, a secondary steam generation device and a tertiary low-temperature utilization device; wherein the mechanical heat recovery device connects the heat-generating components of the blower mill to the dry pipe inlet air duct in order to absorb the heat generated by the heat-generating components of the blower mill and transfer it to the dry pipe inlet air duct; wherein the primary preheating device, the secondary steam generating device and the tertiary low-temperature utilization device are arranged sequentially in the flue gas duct at the dry pipe flue gas outlet; wherein the heat outlet of the primary preheating device is connected to the combustion air duct of the boiler in order to preheat the combustion air of the boiler; wherein the steam outlet of the secondary steam generating device is connected to the steam inlet of a steam turbine to assist the turbine in driving a generator for electricity generation; and wherein the tertiary low-temperature utilization device is connected to the process water line to regulate the process water temperature and to assist the plant heating.

The invention discloses a non-catalytic and catalytic coupling synthesis gas preparation device and application thereof to synthesis gas preparation, the device comprises a non-catalytic reactor, a catalytic reactor, a pre-catalytic reactor, a waste heat boiler, a plurality of heat exchangers, a connecting pipeline and the like, and the pre-catalytic reactor is also provided with a heat exchanger structure; a pre-catalytic reaction cavity is arranged between a cold end inlet and a hot end outlet of the pre-catalytic reactor; the heat exchanger is used for preheating oxygen and part of raw materials and feeding into the non-catalytic reactor; the rest of the raw materials are preheated again and then fed into the pre-catalytic reactor and the non-catalytic reactor, reactants of the pre-catalytic reactor are fed into the catalytic reactor for continuous reaction, reactants of the catalytic reactor are used for supplying heat to the pre-catalytic reactor, the heat exchanger and the waste heat boiler, and the waste heat boiler can be used for preparing raw material steam; and heat balance adjustment of the whole device can also be participated. The device is high in heat utilization rate and conversion rate, can adjust the hydrogen-carbon ratio of the synthesis gas, and is particularly suitable for preparing methanol synthesis gas from natural gas and the like.

The thermal chemical heat storage and carbon capture system comprises a coal-fired boiler, a calcination reactor and a carbonation reactor, the calcination reactor extracts high-temperature flue gas from the front wall of a hearth of the coal-fired boiler, the high-temperature flue gas drives CaCO3 in the calcination reactor to be decomposed into CaO and CO2, and heat storage is achieved; the reacted flue gas is pumped back into a tail flue of the coal-fired boiler, and the flue gas flow required by the reaction is controlled through a flow control valve on a pumping pipeline; caO generated by the calcination reaction can enter the carbonation reactor in the heat release stage, a heat release carbonation reaction is carried out, heat is released, CaCO3 obtained after the heat release reaction returns to the calcination reactor through a pipeline to serve as a reaction raw material, and CO2 obtained after the heat release reaction is output to a heat supply system. The integration of heat storage, heat release and carbon capture is realized by utilizing calcium-based material circulation, and the peak regulation capacity and the carbon capture economy of the coal-fired unit are remarkably improved.

The application relates to the technical field of solar power generation, in particular to a combined cooling, heating and power (CCHP) system. A first heat storage circuit is used for collecting solar energy and storing the solar energy as low-temperature heat energy; a second heat storage circuit is coupled with the first heat storage circuit and is used for converting the low-temperature heat energy into high-temperature heat energy and storing the high-temperature heat energy; a user heat circuit is coupled with the first heat storage circuit and / or the second heat storage circuit and is used for transmitting a heat source to a user heat end; a user cold circuit is coupled with the first heat storage circuit and / or the second heat storage circuit and is used for generating a cold source and transmitting the cold source to a user cold end; and a power generation circuit is coupled with the second heat storage circuit and is used for converting the high-temperature heat energy into electric energy. Through the synergistic integration of multi-stage energy storage, hierarchical heat coupling and multi-end energy output, the application realizes efficient and full-grade cascade utilization of solar energy, significantly reduces heat loss, meets the multiple demands of users for power generation, heat supply and refrigeration, greatly improves the overall energy utilization efficiency of the system and avoids resource waste.

The invention belongs to the technical field of flexibility improvement and transformation of coal-fired power generation, and discloses a multi-parameter optimization method for optimizing equivalent electricity-electricity efficiency of an electric heating fused salt heat storage pure condensing power generation system, which comprises the following steps of: firstly, determining a fused salt heat storage medium temperature interval, a steam generator heat transfer structure and key parameters of a power generation subsystem; the main steam pressure, the reheating steam extraction pressure and the like are used as optimization variables; secondly, on the basis of thermodynamic feasibility and equipment safety, setting boundary conditions such as main steam pressure grading limitation, a deaerator operation boundary, a fused salt thermal stability threshold value and a heat exchanger heat transfer economical efficiency constraint; then, the heat exchange power of a steam generator is calculated through the reference working condition, the cold and hot salt design temperature and the heat exchange area are determined by combining the fused salt heat exchange temperature difference, and the fused salt mass, the heat storage tank volume and the electric heater power are calculated according to heat absorption and release balance; and finally, iteratively optimizing the key parameters by adopting a multi-parameter optimization algorithm until the equivalent electricity-electricity efficiency is optimal. The problems that in a traditional method, parameter collaboration is poor, constraint conditions are ignored, and global optimization is insufficient are solved, the operation efficiency and economical efficiency of the electric heating fused salt heat storage pure condensing power generation system are remarkably improved, and green and sustainable development of energy is facilitated.

A system includes a heat exchanger having a plurality of tubes arranged in a tube bundle having opposite first and second sides, opposite third and fourth sides extending from the first side to the second side, and opposite fifth and sixth sides extending from the first side to the second side, wherein the fifth and sixth sides extend between the third and fourth sides. The heat exchanger further includes a plurality of external flow lanes extending across the tube bundle and between the fifth and sixth sides outside of the plurality of tubes. Each tube of the plurality of tubes comprises a plurality of tubing portions extending in opposite first and second directions between the first and second sides in a sequence, and each successive tubing portion in the sequence switches lanes between the plurality of external flow lanes relative to a preceding tubing portion.

The invention discloses a steam utilization device for steam turbine overhaul, and belongs to the technical field of steam utilization, the steam utilization device comprises an equipment base, a heat exchange box body is fixedly mounted at the top of the equipment base, the top of the heat exchange box body is fixedly connected with an evaporation boiler through a heat conduction structure, and the evaporation boiler and the heat exchange box body are in heat conduction fit; an energy conversion shell is fixedly installed at the position, close to the heat exchange box body, of the top of the equipment base, a first-stage condenser is fixedly installed at the position, close to the energy conversion shell, of the top of the equipment base, and the inlet end of the first-stage condenser communicates with the outlet end of the energy conversion shell in a sealed mode through a pipeline. High-temperature and high-pressure steam firstly enters the heat exchange rectangular pipe to release heat energy, condensate water containing impurities is evaporated and purified through the discharged high-temperature steam, thorough separation of the impurities and a water body is achieved, and the situation that steam water containing the impurities enters a steam turbine again to pollute the steam turbine is fundamentally avoided.

The invention relates to the technical field of extractor hoods, and discloses an extractor hood which comprises a machine shell, a smoke suction device, a steam generation assembly and a water supply assembly. The smoke suction device is connected to the machine shell. The steam generation assembly is connected to the machine shell and used for heating the liquid medium to generate steam so as to clean the smoke suction device. The water supply assembly comprises a water supply flow path and a water injection port communicated with the water supply flow path, the water supply flow path is communicated with the steam generation assembly, and the water supply assembly is movably arranged on the machine shell to have a working state and a containing state. According to the technical scheme, liquid media can be conveniently supplied and stably conveyed, meanwhile, the problem that accessories are prone to being lost is solved, the internal layout is simplified, and steam cleaning is stably achieved.

The system comprises a power generation system and a heat supply system, the power generation system comprises a boiler, a carbon dioxide turbine, a heat regenerator, a precooler, a compressor and a motor generator, an outlet of the boiler is connected with an inlet of the turbine, an outlet of the turbine is connected with a hot side inlet of the heat regenerator, and an outlet of the compressor is connected with a hot side inlet of the precooler. An outlet of the precooler is connected with an inlet of the compressor, an outlet of the compressor is connected with a cold-side inlet of the heat regenerator, a cold-side outlet of the heat regenerator is connected with an inlet of the boiler, and the compressor and the turbine are respectively connected with the motor generator. The heat supply requirement can be met, complete thermoelectric decoupling is achieved, and the flexibility of the supercritical carbon dioxide cycle generator set is fully exerted while stable heat supply is achieved.

The invention relates to the field of thermal power generating unit thermodynamic equilibrium adjustment, and provides a thermal power generating unit thermodynamic equilibrium adjustment system and method, and the system comprises a multi-source data collection module which is used for collecting multi-source data in the operation of a thermal power generating unit in real time; the thermodynamic state evaluation module is used for constructing a thermodynamic system dynamic model and calculating a current thermodynamic equilibrium state index; the multi-level coordinated regulation and control module is used for generating a multivariable coordinated control instruction according to the current thermodynamic equilibrium state index and the control strategy; the self-adaptive optimization decision module is used for dynamically adjusting a control strategy based on the historical operation data and the real-time thermal state; and the actuating mechanism driving module is used for converting the multivariable coordination control instruction into an operation signal and driving an actuating mechanism to act. The thermal power state of the thermal power generating unit can be comprehensively and accurately monitored, the dynamic response speed and the control precision are improved, the adaptability and the robustness of different working conditions are enhanced, reliable execution of an adjusting instruction is ensured, and the operation economical efficiency and the environment-friendly performance of the unit are effectively improved.

The embodiment of the present disclosure provides a molten salt-based gas-steam combined heat storage system and a capacity calculation method. The system comprises a gas turbine, a boiler, a gas heat exchanger, a steam heat exchanger, a high-temperature molten salt storage tank and a low-temperature molten salt storage tank. The outlet of the gas turbine is connected with the inlet of the flue of the boiler. The gas heat exchanger is connected with the flue between the gas turbine and the high-temperature reheater and the high-pressure superheater in the boiler. The steam heat exchanger is connected with the steam-water pipeline between the high-pressure superheater and the high-pressure drum and the low-pressure drum in the boiler. The low-temperature molten salt storage tank is connected with the high-temperature molten salt storage tank through a molten salt conveying pipeline. The molten salt conveying pipeline is sequentially connected with the steam heat exchanger and the gas heat exchanger. The low-temperature molten salt is heated to high-temperature molten salt when passing through the steam heat exchanger and the gas heat exchanger along the molten salt conveying pipeline. The system realizes reasonable distribution of steam flow and gas flow, significantly improves the heat exchange efficiency of the heat storage heat exchanger, improves the energy storage density per unit mass of the molten salt heat storage system, and reduces the cost.

The invention provides a method, device and equipment for controlling the steam drum water level of a gas-steam combined cycle unit. The method comprises the steps that the opening degree of an inlet guide vane of a gas compressor, the turbine exhaust temperature, the feed water flow, the steam flow, a steam drum water level set value and the steam drum water level are obtained in real time; according to the opening degree of an inlet guide vane of a gas compressor and the exhaust temperature of a turbine, the gas turbine side feed-forward control quantity is determined; according to the steam drum water level set value and the steam drum water level, a first PID controller is adopted to determine an original feed water flow set value; according to the feed water flow, the steam flow, the original feed water flow set value and the gas turbine side feed-forward control quantity, a second PID controller is adopted to determine a first feed water adjusting valve opening instruction; and adjusting the opening degree of the feed water adjusting valve according to the first feed water adjusting valve opening degree instruction, and controlling the steam drum water level of the gas-steam combined cycle unit. According to the invention, reliable guarantee is provided for safe and efficient operation of the unit through a cooperative regulation mechanism of the gas turbine side feed-forward control quantity and three-impulse control.

The invention provides a drying device and a drying method for curing desulfurization wastewater. The drying device comprises a steam feeding valve and a tower body, the tower body comprises an inner tower body and an outer tower body, and a steam channel is formed between the inner tower body and the outer tower body; the steam feeding valve is arranged at the top of the tower body, a steam inlet of the steam feeding valve is connected to a high-pressure bypass pipeline of a boiler in the coal-fired power plant unit, and a steam outlet of the steam feeding valve is communicated to the steam channel; a cooling steam outlet is formed in the lower part of the outer tower body; a first isolation plate and a second isolation plate which are provided with communicating holes are sequentially arranged in the inner tower body from top to bottom, so that the inner tower body is divided into a dry spraying area, a particle crushing area and a cyclone separation area which are sequentially communicated from top to bottom; and the flue gas purification device is used for sequentially introducing the flue gas purification device to atomize, evaporate and solidify the desulfurization wastewater to generate ash particles, crush the ash particles into ash powder and separate flue gas and the ash powder. According to the drying device and the drying method, energy of high-pressure wet steam in the high-pressure bypass pipeline is transferred and recycled by coupling the high-pressure bypass pipeline, and damage to a filter bag in a bag-type dust collector during tower heating is avoided.

The application relates to a combined heat and power system, which comprises a boiler, a generator unit, a molten salt heat storage subsystem and a steam heat storage subsystem; the generator unit comprises a high-pressure cylinder, a medium-pressure cylinder and a low-pressure cylinder; the molten salt heat storage subsystem comprises a cold salt tank, a hot salt tank, a heat storage heat exchanger and a heat supply heat exchanger, the heat storage heat exchanger is provided with a first low-temperature medium flow channel and a first high-temperature medium flow channel, the heat supply heat exchanger is provided with a second low-temperature medium flow channel and a second high-temperature medium flow channel; the first high-temperature medium flow channel is connected with a steam extraction end of the medium-pressure cylinder; one end of the second low-temperature medium flow channel is connected with a water supply end, and the other end is connected with a heat user; the steam heat storage subsystem comprises a steam heat storage tank, an input end of the steam heat storage tank is connected with the steam extraction end of the medium-pressure cylinder, an output end is connected with a steam inlet end of the low-pressure cylinder, and the steam heat storage tank has the advantages of being able to meet different scheduling requirements and increasing the flexibility of scheduling.

The present disclosure relates to an integrated system and operation method of electrohydrogenation, which is beneficial to deep coupling of internal streams, significantly improves system coordination operation capability and dynamic response speed, and is beneficial to recovery of system waste heat and realization of energy distribution, and significantly improves system energy utilization rate.

The application relates to the technical field of household appliances, and particularly discloses a control method and device of a cooking equipment, a storage medium and the cooking equipment, wherein the cooking equipment comprises a combustion chamber, the combustion chamber is provided with a burner and a steam generator, the method comprises the following steps: obtaining combustion state information of the burner in an operation process and environment state information of the combustion chamber; determining a flame state of the burner according to the combustion state information and the environment state information; and controlling at least one of the burner and the steam generator according to the flame state, so as to maintain the burner in a safe and stable operation state. According to the control method, the combustion state of the burner and the environment information of the combustion chamber are obtained in real time, the flame state is determined after fusion analysis, the burner or the steam generator is intelligently controlled according to the flame state, the burner is ensured to be always in a safe and stable operation state, the reliability and the service life of detection can be improved in a high-humidity environment, and the environment change is self-adapted.

The application provides a coupling system and a control method for improving the variable load rate of a secondary reheat unit integrated with a medium-temperature energy storage, wherein the medium-temperature energy storage system is connected with the high-pressure cylinder outlet through a high-pressure cylinder outlet steam extraction valve during the energy storage process, is connected with the deaerator outlet through a pressure relief valve, is connected with the feed water pump outlet through a deaerator outlet regulating valve during the energy release process, and is connected with the boiler feed water inlet through a pipeline, so as to form a secondary reheat unit integrated with the medium-temperature energy storage; and a load splitting method is provided, which splits the whole unit load instruction into a medium-temperature energy storage system load instruction and a secondary reheat unit boiler coordination system load instruction, and the medium-temperature energy storage system load instruction is realized through high-pressure cylinder exhaust valve opening degree control and deaerator outlet regulating valve opening degree control in the load decreasing and increasing processes; through the coupling system and the load splitting method, the time-space transfer of the unit energy in the variable load process is realized, the variable load rate of the secondary reheat unit is improved, and the flexibility of the unit is enhanced.

This utility model discloses a heating device for drying a fluidized bed. It includes a steam boiler, with a steam pipe fixedly connected to the upper surface of the steam boiler. The steam pipe is fixedly connected to a shell, with a fluidized bed above the shell and a wind chamber below. Multiple layers of steam ring pipes are embedded in the inner wall of the fluidized bed. The steam ring pipes are fixedly connected to a condensate pipe and a steam riser pipe. The steam riser pipe is fixedly connected to a spiral finned tube, which is fixedly connected to the wind chamber. A fan is fixedly connected to the left surface of the wind chamber, and an air inlet pipe is fixedly connected to the upper surface of the wind chamber. An air distribution plate is fixedly connected to the upper surface of the air inlet pipe. Through this structure, the embedded steam ring pipes avoid the problem of adhesion in areas prone to dead zones on the surface of the internal heat exchanger. Furthermore, the steam heat is transferred to the fluidized air through the spiral finned tubes to achieve primary drying, while the material is further dried secondaryly through the embedded steam ring pipes within the fluidized bed, fully utilizing a single heating system for double-efficiency material drying.

The invention discloses a UHT sterilization system driven by a heat pump steam system and a sterilization method of the UHT sterilization system, and relates to the technical field of UHT sterilization systems. The UHT sterilization system overcomes the technical defect that the utilization rate of heat energy of an existing UHT sterilization system is low. The UHT sterilization system comprises a boiler heating subsystem and a heat pump heating subsystem. The heat pump heating subsystem comprises a second preheating heat exchanger and a heat pump unit; a first electric three-way valve is arranged on the material pipe between the material bin and the first preheating heat exchanger, a fourth electric three-way valve is arranged between the first preheating heat exchanger and the ultra-high-temperature sterilizer, and a medium-temperature outlet of the second preheating heat exchanger is connected with the ultra-high-temperature sterilizer through the fourth electric three-way valve; a backwater outlet of the ultrahigh-temperature sterilizer is connected with a backwater inlet of the heat pump unit through a sixth electric three-way valve; a steam outlet of the heat pump unit is connected with a steam inlet of the ultrahigh-temperature sterilizer; waste heat in the material sterilization and cooling process is recycled through the heat pump, the utilization rate of heat energy in the system is increased, and engineering investment is saved.

The application discloses a coal-fired power plant water-heat-chemical value-added system for a new power system and an intelligent flexible operation method thereof. The system comprises a coal-fired generator unit, a heat-steam-power coupling subsystem, a water-hydrogen-oxygen coupling subsystem and a carbon-chemical coupling subsystem integrated with the coal-fired generator unit, and is uniformly coordinated by an intelligent collaborative control unit. Solid particle storage flue gas waste heat can be used to quickly produce steam injection into a steam turbine to improve the frequency modulation response speed of the unit. Low-valley electricity is used to electrolyze hydrogen, and by-product oxygen is recycled. Hydrogen and captured carbon dioxide are used to synthesize green methanol to realize carbon resource utilization. Methanol synthesis reaction heat and electrolysis waste heat are recovered in stages. The operation method can intelligently switch and cooperate between fast frequency modulation, hydrogen production by electrolysis and methanol synthesis according to grid instructions and real-time electricity prices, so that the flexibility of the unit, resource utilization and comprehensive benefits are systematically improved.

The application relates to an IGCC system coupled with biomass and near-zero emission high-purity CO2 capture and a working method thereof, and belongs to the field of coal gasification combined cycle power generation coupled with biomass, in particular to an IGCC system coupled with biomass and near-zero emission high-purity CO2 capture and a working method thereof. The application is used for solving the problems that the existing IGCC system has low CO2 capture rate, high energy consumption, low power generation efficiency, and a large amount of nitrogen generated in the oxygen taking process and difficult to effectively utilize. The application comprises an air separation device, a gasification furnace, a sensible heat recovery device, a purification device, a gas power generation unit, a waste heat recovery unit, a steam power generation unit, a biomass fermentation device, a methane reforming unit, an adsorption separation unit and an ammonia synthesis tower. The application is based on the overall coal gasification combined cycle power generation system of post-combustion CO2 capture and oxygen-enriched combustion technology, introduces a biomass ammonia synthesis process, generates H2 and CO through biomass fermentation and reforming, utilizes N2, and improves the system efficiency.

The invention provides a fuel-driven flexible heat regeneration type thermodynamic device, and belongs to the technical field of thermodynamics and thermodynamic. The heating furnace is communicated with the outside through a fuel channel and a heat source regenerator, the heating furnace is communicated with the outside through a fuel gas channel and the heat source regenerator, the outside is communicated with a compressor through a circulating working medium channel, and the compressor is communicated with a low-temperature expansion machine through a first circulating working medium channel and a second regenerator. The low-temperature expansion machine further communicates with the outside through a circulating working medium channel, the compressor further communicates with the expansion machine through a second circulating working medium channel via a heat regenerator and a heating furnace, and the expansion machine further communicates with the outside through a circulating working medium channel via a second heat regenerator after communicating with the expansion machine through the circulating working medium channel via the heat regenerator. And the expansion machine and the low-temperature expansion machine are connected with the compressor and transmit power, so that the fuel-driven flexible heat regeneration type thermodynamic device is formed.

The utility model relates to the technical field of high-pressure sterilization, and discloses a high-pressure sterilization cooling device which comprises a barrel body, a cover plate is clamped at the top of the barrel body, a sterilization assembly is installed on the side wall of the barrel body and used for high-temperature and high-pressure sterilization, and a cooling assembly is installed at the bottom of the cover plate and used for cooling an inner cavity of the barrel body. The sterilization assembly comprises a placement plate, the placement plate is fixedly mounted on the inner wall of the barrel body, and air holes are formed in the surface of the placement plate; according to the high-pressure sterilizing and cooling device, raw materials are placed on the surface of the placing plate, the cover plate is used for sealing the barrel body, the steam generator is driven to charge steam into the inner cavity of the barrel body through the air outlet pipe, the air holes are formed in the surface of the placing plate, then the steam can flow upwards through the air holes, the raw materials are promoted to move in the process, and meanwhile a threaded column drives a rotating plate to rotate; the raw materials are stirred, so that the raw materials can be in uniform contact with steam, the raw materials are subjected to high-pressure and high-temperature sterilization, and the high-temperature sterilization time is shortened.

To provide a cold heat power generation system capable of utilizing cold heat of LNG to the maximum by using carbon dioxide as a medium.SOLUTION: A cold energy power generation system 1 according to the present invention includes a liquefied carbon dioxide storage tank 21, a liquefied carbon dioxide pump 30 that pressurizes liquefied carbon dioxide, a liquefied carbon dioxide heater 40, a carbon dioxide expansion turbine 50, a carbon dioxide gas solidification device 10 that solidifies carbon dioxide gas to generate dry ice, a carbon dioxide gas supply line 171 that supplies carbon dioxide gas to the carbon dioxide gas solidification device 10, a dry ice supply line 172 that supplies dry ice generated by the carbon dioxide gas solidification device 10 to the liquefied carbon dioxide storage tank 21, and a dry ice melting device 22 that melts dry ice by heat exchange with a fluid having a temperature higher than a melting point of dry ice to generate liquefied carbon dioxide.SELECTED DRAWING: Figure 1